diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a9b16f..5684094 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 env:
   # Each job detects Python locally to handle multi-runner setups
   FIND_PY: |